42LG3000 (CHASSIS:LD84A) - LG TV Service Manual (repair manual). Page 8

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6. Chroma & Brightness 
6.1 37"LCD Module
1) Standard Test Condition (The unit has been ‘ON’) 
2) Stable for approximately 30 minutes in a dark environment at 25±2°C
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta= 25±2°C, VLCD=12.0V, fV=60Hz, Dclk=148.5MHz VBR_A=1.6V, ExtVBR_B=100%
5) Measurement condition : Set the value of VBRT to maximum luminance of white.
6.2 42"LCD Module
1) Standard Test Condition (The unit has been ‘ON’) 
2) Stable for approximately 30 minutes in a dark environment at 25±2°C
3) The values specified are at approximate distance 40Cm from the LCD surface
4) Ta= 25°C, Vcc=12.0V, VIVN=24.0Hz, VBRT=3.3V, Timing:60Hz(typ.value)
5) Measurement condition : Set the value of VBRT to maximum luminance of white.
No.
Item
Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
89
2.
Luminance
Luminance (cd/m2)
400
500
Variation
-
1.3
MAX / MIN
3.
Contrast Ratio
CR
1000
1500
4.
CIE Color Coordinates
White
WX
Typ
0.280
Typ
AUO(42")
WY
-0.03
0.290
+0.03 
RED
Xr
0.640
Yr
0.330
Green
Xg
0.290
Yg
0.600
Blue
Xb
0.150
Yb
0.060
No.
Item
Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
89
2.
Luminance
Luminance (cd/m2)
400
500
Variation
-
1.3
MAX / MIN
3.
Contrast Ratio
CR
800
1200
4.
CIE Color Coordinates
White
WX
Typ
0.279
Typ
LPL(37")
WY
-0.03
0.292
+0.03 
RED
Xr
0.641
Yr
0.334
Green
Xg
0.291
Yg
0.614
Blue
Xb
0.145
Yb
0.062
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